In the article, science and poetry, scientific and poetic creativity are considered as part of human culture. It is shown that both scientific and poetic activities are loaded with cognitive content. At the same time, if the thesis about the cognitive orientation of science is not in doubt, then the connection of art with knowledge is not so obvious and needs explication. Poetry is considered as cultural phenomena that are directly related to knowledge, to the cognitive component of human activity. (...) Poetry and science can be compared on the basis of their direct relationship to the emotional environment of human existence and the existential feelings experienced by the subject of knowledge. In the article, we evaluate the concept of intellectual emotion, which was introduced by members of the Kharkiv linguistic school for the analysis of human cognitive activity in culture. For analysis of existential feelings, we review the conditions of self-awareness of both scientific and poetic activity. Special attention is paid to the analysis of apperception of the complex poetic contents of the consciousness of both poet and reader-interpreter as his co-author. Considering the views of E. Husserl and A. Bergson as well as the views of members of the Kharkiv linguistic school, we discuss the theoretical and cognitive aspect of poetic creativity. In the article, we conclude about a person’s holistic perception of knowledge, which is not only appercepted by the human mind but also affects his emotional sphere. We have shown that there are intellectual emotions involved in the consciousness of a person who solves a complex scientific or philosophical problem as well as perceiving poetry that has an cognitive aspect. We also concluded that existential emotions and feelings play a significant role in cognition. Therefore, knowledge can be not only scientific or philosophical but also poetic, and in the latter form of knowledge the existential aspects are more clearly manifested. (shrink)